#303E7D#303E7D

#303E7D is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.7% C 0.108 H 271.2°. Best body text is #FFFFFF at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#303E7D
RGB	rgb(48, 62, 125)
HSL	hsl(229, 45%, 34%)
HSV	hsv(229, 62%, 49%)
CMYK	cmyk(61.6%, 50.4%, 0%, 51%)
CIE-LAB	lab(28.26, 15.18, -37.61)
CIE-LCH	lch(28.26, 40.56, 291.98°)
OKLab	oklab(38.72% 0.0022 -0.1075)
OKLCH	oklch(38.72% 0.108 271.2)
XYZ	xyz(6.6420, 5.5538, 20.1200)
Luminance	0.0555 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#303E7D #7D6F30

analogous

#30657D #303E7D #49307D

triadic

#303E7D #7D303E #3E7D30

tetradic

#303E7D #7D3065 #7D6F30 #307D49

square

#303E7D #7D3065 #7D6F30 #307D49

split-complementary

#303E7D #7D4930 #657D30

monochromatic

#0E1225 #1F2851 #303E7D #4154A9 #6475C3

Accessibility & contrast

On white

9.95

#303E7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#303E7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #303E7D

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##303E7D	#FFFFFF	#000000	##FFFFFF
##303E7D	1.00	9.95	2.11	9.95
#FFFFFF	9.95	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E467F

Deuteranopia (green-blind)

#113F7C

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #303e7d;
/* rgb */ color: rgb(48, 62, 125);
/* oklch */ color: oklch(38.7% 0.108 271.2);

Tailwind

colors: {
  custom: {
    50: '#7073a3',
    500: '#303e7d',
    950: '#000000',
  },
}

SCSS

$custom: #303e7d;
$custom-light: #7073a3;
$custom-dark: #000000;

JSON

{
  "hex": "#303e7d",
  "rgb": {
    "r": 48,
    "g": 62,
    "b": 125
  },
  "hsl": {
    "h": 229.091,
    "s": 44.509,
    "l": 33.922
  },
  "oklch": {
    "l": 0.38719,
    "c": 0.10751,
    "h": 271.2
  },
  "luminance": 0.05554
}

Semantic roles & 50–950 ramp

primary

#303E7D

secondary

#AB9D5E

accent

#BD54D4

background

#F7F6FA

surface

#EDECF4

border

#C8C7CE

text

#08080F

muted

#7B7B7F

Preview Lab

Preview with #303E7D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →